I have not yet tried to downgrade yet. I want to gather more information about the experiences of others before I make the effort; it is way more than just the firmware that is different now, keep in mind: I was using 3 year old versions of the message and android apps as well, which seem to be much more difficult to downgrade than the firmware.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I have not yet tried to downgrade yet. I want to gather more information about the experiences of others before I make the effort; it is way more than just the firmware that is different now, keep in mind: I was using 3 year old versions of the message and android apps as well, which seem to be much more difficult to downgrade than the firmware.